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Despite being a documentary series, several paleontological inaccuracies appear right throughout them. A lot of them are caused by new discoveries. Here's a list of them.

GeneralEdit

  • Animals would not make nearly as much noise as they did in the series.
  • The pterosaurs lack pteroid bones, bones that make up an essential part of a pterosaur's wings.
  • The pterosaurs also lack pycnofibers, hair-like filaments on the head and body, similar to, but not homologous (sharing a common structure) with, mammalian hair.
  • All members of the troodontidae family in the series are fuzzy, while in reality, they had wings and other feathers for show.
  • Tyrannosaurids may have feathers.

Lost WorldEdit

  • Spinosaurus can't twist it's hands downward without breaking them. No theropod could do that. Most theropods in the show don't pronate them, but Spinosaurus is shown to do so in many shots.
  • New fossils show Spinosaurus walked on all fours and spent a majority of its time in the water.
    • Ibrahim et al never found the arms for Spinosaurus. What we know about Spinosaurus' arms comes from assumptions based on other spinosaurids. The arms of S. aegyptiacus are unknown at the moment. The idea that Spinosaurus was quadrupedal comes from how short the legs are which very well could be a scaling error as the Ibrahim specimen is not an adult.
    • Spinosaurus wasn't 17 metres long and 11 tonnes, but rather 15 metres long and 6 to 7.6 tonnes.
  • Onchopristis is mentioned to swim up from the sea to freshwater, but newer discoveries indicate they were entirely freshwater animals, just like sturgeons.
  • Sarcosuchus wasn't a crocodile, if not a reptile distantly related to crocs.
  • Ouranosaurus did not live at this place or time.

Baryonyx may actually be the same animal as Suchosaurus.

Feathered DragonsEdit

  • Saurornithoides is shown to have fuzzy, while in reality, they had wings and other feathers for show.
  • Sinornithosaurus may not have been venomous. The elongated teeth may have actually been loose and the venom grooves are actually the same as other theropods. So this hypothesis may have been based on a badly preserved skull. However, in the same journal issue, Gong and his team submitted a reassessment of the 2010 study, casting doubt on their findings. They admitted that grooved teeth were common among theropods (though they suggested they were really only prevalent among feathered maniraptorans), and hypothesized that venom may have been a primitive trait for all archosaurs if not all reptiles, which was retained in certain lineages. They also disputed the claim that the teeth were significantly out of their sockets in the holotype specimen of Sinornithosaurus, though they admitted that they were not in a completely natural position. Gong's reassessment also claimed that certain undescribed specimens had fully articulated teeth showing a similar length. So it may have been venomous after all. But it is still debated.
  • Microraptor is the wrong color. We now know from fossilized melanosomes that they were completely black.
  • There is evidence small Ornithopods like Jeholosaurus had quills or primitive feathers.
  • The skull shape of Microraptor is now known to be wrong, as around the base is taller and the tip gradually gets narrower.

Last Killers Edit

  • Troodon is shown to have fuzzy, while in reality, they had wings and other feathers for show.
  • Daspletosaurus like the rest of Tyrannosaurs may have feathers.
  • Raptorex was not an ancestot to T.rex did not live alongside Psittacosaurus. Raptorex lived 70 mya while Psittacosaurus lived 126-101 mya
  • All Ceratopsids may have feather-like bristles on their back side much like Psittacosaurus or Triceratops.

Fight For LifeEdit

  • Saurophaganax is argued to be a large specimen of Allosaurus. Plus, the size of Allosaurus in the show is closer to a juvenile than to an adult.
  • Predator X is now known as Pliosaurus funkei, it has also been downsized from 15 metres and 45 tonnes to 10 to 13 metres in length, while weighing in at 10 to 20 tonnes.

New GiantsEdit

  • Argentinosaurus was probably not the largest dinosaur of all time. Other fossils of possibly larger animals have been found, such as Puertasaurus and Turiasaurus.
  • Same problem with Sarcosuchus as above.
  • Paralititan did not coexist with Ouranosaurus

The Great SurvivorsEdit

  • Bradycneme is shown to have fuzzy, while in reality, they had wings and other feathers for show. 
  • Hatzegopteryx had the crest of Quetzalcoatlus, not Hatzegopteryx. However, is a close cousin. 
  • Hatzegopteryx is rather oversized. 
  • The tyrannosaurid from the Zuni Basin isn't called Zunityrannus. They just named it that. But still, due to scientific rules, the first name stays unless the animal is just the same of another species. Zunityrannus is estimated at 6 meters and weigh a tonne.
  • Zunityrannus and Alectrosaurus may have feathers.
  • Bradycneme is depicted as a troodontid, when in real life it was a alvarezsaurid.
  • In the film it was said an asteroid killed the dinosaurs. Recent studies show it was probably a comet ,or volcano activity in Asia.
  • In the database says that the mortality of the dinosaurs is 100, is not quite correct because the Birds are modern dinosaurs, as shown in episode 2.

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